DE10340123A1 - Filter device for liquid filtration - Google Patents
Filter device for liquid filtration Download PDFInfo
- Publication number
- DE10340123A1 DE10340123A1 DE10340123A DE10340123A DE10340123A1 DE 10340123 A1 DE10340123 A1 DE 10340123A1 DE 10340123 A DE10340123 A DE 10340123A DE 10340123 A DE10340123 A DE 10340123A DE 10340123 A1 DE10340123 A1 DE 10340123A1
- Authority
- DE
- Germany
- Prior art keywords
- filter
- filter device
- liquid
- expansion element
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 238000001914 filtration Methods 0.000 title claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 239000002609 medium Substances 0.000 description 22
- 239000000463 material Substances 0.000 description 10
- 230000008014 freezing Effects 0.000 description 9
- 238000007710 freezing Methods 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000012595 freezing medium Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/08—Construction of the casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/10—Safety devices, e.g. by-passes
- B01D27/103—Bypass or safety valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/902—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/403—Special measures for connecting different parts of the filter allowing dilatation, e.g. by heat
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Eine Filtereinrichtung zur Flüssigkeitsfilterung weist ein in einem Filtergehäuse angeordnetes Filterelement auf, wobei im Filtergehäuse ein verformbares Ausdehnungselement angeordnet ist, bei dessen Verformung das Volumen zumindest eines Abschnitts des Strömungswegs der zu filternden Flüssigkeit im Filtergehäuse änderbar ist.A filter device for liquid filtration has a filter element arranged in a filter housing, wherein in the filter housing a deformable expansion element is arranged, in the deformation of the volume of at least a portion of the flow path of the liquid to be filtered in the filter housing is changeable.
Description
Die Erfindung bezieht sich auf eine Filtereinrichtung zur Flüssigkeitsfilterung nach dem Oberbegriff des Anspruches 1.The The invention relates to a filter device for liquid filtration according to the preamble of claim 1.
In
der Druckschrift
Die
in der
Eine axiale Zufuhr des Mediums kann andererseits aus konstruktiven Gründen Vorteile bringen, da sich die Filtereinrichtung besonders leicht in einen Rohrstrang integrieren lässt. In diesem Fall muss aber die axiale Stirnseite des Filterelements mit einem Deckel flüssigkeitsdicht versiegelt werden, woraufhin das in das Filtergehäuse eingeleitete und zu reinigende Medium an dem stirnseitigen Deckel des Filterelementes vorbei in einen radial das Filterelement umgreifenden Ringraum einströmt und von dort radial von außen nach innen durch das Filtermaterial hindurchströmt.A On the other hand, axial supply of the medium can be advantageous for structural reasons bring because the filter device is particularly easy in a pipe string integrate. In this case, but the axial end face of the filter element liquid-tight with a lid are sealed, whereupon introduced into the filter housing and to be cleaned medium on the front-side cover of the filter element passing in a radially surrounding the filter element annular space and from there radially from the outside flows inwardly through the filter material.
Probleme können jedoch auftreten, wenn das zu reinigende Medium einen verhältnismäßig hohen Gefrierpunkt aufweist. Bei kalten Außentemperaturen kann das in das Filtergehäuse axial eingeleitete, flüssige Medium gefrieren, wobei aufgrund der beim Gefrieren erfolgenden Ausdehnung des Mediums der Deckel und damit auch das gesamte Filterelement zerstört werden können.issues can However, occur when the medium to be cleaned a relatively high Freezing point has. In cold outside temperatures this can be done in the filter housing axially introduced, liquid Freeze medium, taking place as a result of freezing Expansion of the medium of the lid and thus also the entire filter element destroyed can be.
Der Erfindung liegt das Problem zugrunde, eine Filtereinrichtung zur Flüssigkeitsfilterung in der Weise auszubilden, dass bei einem Gefrieren des zu reinigenden Mediums eine Beschädigung der Filtereinrichtung vermieden wird.Of the Invention is based on the problem, a filter device for liquid filtering in such a way that when freezing the to be cleaned Medium damage the filter device is avoided.
Dieses Problem wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.This Problem is inventively with the Characteristics of claim 1 solved. The dependent claims give expedient further education at.
Bei der erfindungsgemäßen Filtereinrichtung befindet sich im Filtergehäuse ein elastisch verformbares Ausdehnungselement, bei dessen Verformung das Volumen zumindest eines Abschnitts des Strömungswegs der zu reinigenden Flüssigkeit beeinflusst wird. Dieses Ausdehnungselement kann unter dem Druck der Flüssigkeit elastisch nachgeben, wodurch der Raum innerhalb des Filtergehäuses auf derjenigen Seite des Filterelementes, die in Kontakt mit der Flüssigkeit steht, vergrößert werden kann. Insbesondere für den Fall, dass das zugeleitete Medium bei tiefen Temperaturen gefriert und sich hierbei ausdehnt, sorgt das Ausdehnungselement durch seine Verformbarkeit für eine Vergrößerung des zur Verfügung stehenden Volumens, so dass die beim Gefrierprozess auftretenden sehr hohen Kräfte nicht unmittelbar auf das Filterelement geleitet werden und auch nicht zu einer Zerstörung des Filterelementes führen können. Die Verformbarkeit des Ausdehnungselements verhindert eine unzulässig hohe Kraftübertragung auf das Filterelement. Auch das Filtergehäuse wird durch das Ausdehnungselement vor unzulässig hohen Kräften geschützt, die zu einer Zerstörung und zu Undichtigkeit des Filtergehäuses führen könnten.at the filter device according to the invention is located in the filter housing an elastically deformable expansion element in the deformation of the Volume of at least a portion of the flow path to be cleaned liquid being affected. This expansion element can under pressure the liquid yield elastically, causing the space inside the filter housing on the one Side of the filter element in contact with the liquid stands, be enlarged can. Especially for the case that the supplied medium freezes at low temperatures and expands, the expansion element ensures by his Deformability for an enlargement of the to disposal standing volume, so that the occurring during the freezing process very high forces not be routed directly to the filter element and also not to destruction lead the filter element can. The deformability of the expansion element prevents an unacceptably high power transmission on the filter element. Also, the filter housing is by the expansion element inadmissible high forces protected, that leads to destruction and could lead to leakage of the filter housing.
Das Ausdehnungselement kann sowohl im Bereich der Rohseite als auch im Bereich der Reinseite des Filterelements angeordnet sein. Gemäß einer zweckmäßigen Weiterbildung ist das Ausdehnungselement auf der der Zuströmöffnung im Filtergehäuse zugewandten Seite des Filterelementes angeordnet. Eine Vereisung des in das Gehäuse eingeleiteten Mediums bewirkt in dieser Ausführung eine Absperrung des Strömungskanals zwischen der Eintrittsseite in das Filtergehäuse und der direkten Anströmseite auf das Filterelement, wodurch das üblicherweise auf mechanische Kräfte empfindlich reagierende Filtermaterial vor unmittelbarem Kontakt mit gefrierendem Medium geschützt ist. Der Zufluss zur Rohseite wird unterbrochen.The Expansion element can be both in the area of the raw side as well be arranged in the region of the clean side of the filter element. According to one appropriate training is the expansion element facing on the inflow opening in the filter housing Side of the filter element arranged. An icing of the in the casing introduced medium causes in this embodiment a shut-off of the flow channel between the inlet side into the filter housing and the direct upstream side the filter element, which usually on mechanical forces sensitive filter material from direct contact protected with freezing medium is. The inflow to the raw side is interrupted.
Möglich sind sowohl Ausführungen, in denen das Ausdehnungselement einen Abschnitt des Strömungswegs der zu reinigenden Flüssigkeit unmittelbar begrenzt und sich unter dem Flüssigkeits- oder Vereisungsdruck verformt, als auch Ausführungen, in denen das Ausdehnungselement außerhalb des Strömungswegs der zu reinigenden Flüssigkeit liegt und somit nicht in unmittelbaren Kontakt mit der Flüssigkeit gelangt. Insbesondere im letzteren Fall stützt sich das Filterelement über das Ausdehnungselement am Filtergehäuse ab, so dass beispielsweise im Fall einer Vereisung der Flüssigkeit das Filterelement sich aufgrund der Verformbarkeit des Ausdehnungselements verschieben lässt, wodurch unzulässig hohe Kräfte auf das Filterelement vermieden werden.Possible embodiments are both in which the expansion element directly limits a portion of the flow path of the liquid to be cleaned and deforms under the liquid or icing pressure, as well as embodiments in which the expansion element is outside the flow path of the liquid to be cleaned and thus not in immediate Contact with the liquid passes. In particular, in the latter case, the filter element is supported via the expansion element on the filter housing, so that, for example, in the case of icing of the liquid, the filter element can be moved due to the deformability of the expansion element, whereby unacceptably high forces are avoided on the filter element.
Das elastisch verformbare Ausdehnungselement besteht zweckmäßig aus Gummi, insbesondere aus einem Elastomer wie beispielsweise EPDM, wobei sich eine Shorehärte von 50 ± 10 als vorteilhaft erwiesen hat. Desweiteren kommt als Material auch ein Moosgummi in Betracht.The elastically deformable expansion element is expedient Rubber, in particular of an elastomer, such as EPDM, where a Shore hardness from 50 ± 10 has proved to be advantageous. Furthermore comes as a material too a foam rubber into consideration.
Das Ausdehnungselement eignet sich besonders vorteilhaft als stirnseitiger Deckel eines zylindrischen Filterelementes, welches radial von dem zu reinigenden Medium durchströmt wird. Zumindest auf der der Zuströmöffnung benachbarten Stirnseite sitzt das elastische Ausdehnungselement auf und separiert die Roh- von der Reinseite. Diese Ausführung lässt sich besonders gut mit einer axialen Zuströmung des zu reinigenden Mediums in das Filtergehäuse kombinieren.The Expansion element is particularly advantageous as an end-side Cover of a cylindrical filter element which radially from the zu flowing through the cleaning medium becomes. At least on the front side adjacent to the inflow opening sits the elastic expansion element and separates the raw from the clean side. This version can be especially good with an axial inflow of the medium to be cleaned in the filter housing combine.
Die Filtereinrichtung eignet sich in einer bevorzugten Ausführung zur Filterung wässriger Harnstofflösungen, welche für die Reduktion der Stickoxidemissionen im Abgasstrang einer Brennkraftmaschine verwendet werden. Aus der wässrigen Harnstofflösung wird im Wege einer thermohydrolytischen Aufspaltung Ammoniak abgegeben, welches mittels Eindüsens dem Abgasstrom beigemengt wird und zu einer Reduktion der im Abgas enthaltenen Stickoxide zu Stickstoff und Wasser führt.The Filter device is suitable in a preferred embodiment for Filtering aqueous Urea solutions, which for the reduction of nitrogen oxide emissions in the exhaust system of an internal combustion engine be used. From the watery urea solution is released by way of a thermohydrolytic splitting ammonia, which by injection is added to the exhaust stream and to a reduction in the exhaust gas contained nitrogen oxides to nitrogen and water.
Alternativ ist aber auch eine Anwendung als Kraftstofffilter oder Ölfilter oder eine Filterung sonstiger Flüssigkeiten, insbesondere in Kraftfahrzeugen, möglich.alternative but is also an application as a fuel filter or oil filter or filtration of other liquids, especially in motor vehicles, possible.
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:Further Advantages and expedient designs are the further claims, the figure description and the drawings. Show it:
In den Zeichnungen sind gleich Bauteile mit gleichen Bezugszeichen versehen.In the drawings are the same components with the same reference numerals Mistake.
Die
in
Im
Filtergehäuse
Die
axial über
die Zuströmöffnung
Die
den Einströmraum
Die
Elastizität
des Deckels
Als
Material für
den Deckel
Auch
im Ausführungsbeispiel
nach
Der
Ringraum
Claims (13)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10340123A DE10340123A1 (en) | 2003-08-30 | 2003-08-30 | Filter device for liquid filtration |
AT04104020T ATE414562T1 (en) | 2003-08-30 | 2004-08-20 | FILTER DEVICE FOR LIQUID FILTERING |
DE502004008473T DE502004008473D1 (en) | 2003-08-30 | 2004-08-20 | Filter device for liquid filtration |
EP04104020A EP1510239B1 (en) | 2003-08-30 | 2004-08-20 | Liquid filter device |
US10/927,523 US7481319B2 (en) | 2003-08-30 | 2004-08-27 | Filter device with deformable expansion element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10340123A DE10340123A1 (en) | 2003-08-30 | 2003-08-30 | Filter device for liquid filtration |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10340123A1 true DE10340123A1 (en) | 2005-03-24 |
Family
ID=34089282
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10340123A Withdrawn DE10340123A1 (en) | 2003-08-30 | 2003-08-30 | Filter device for liquid filtration |
DE502004008473T Active DE502004008473D1 (en) | 2003-08-30 | 2004-08-20 | Filter device for liquid filtration |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502004008473T Active DE502004008473D1 (en) | 2003-08-30 | 2004-08-20 | Filter device for liquid filtration |
Country Status (4)
Country | Link |
---|---|
US (1) | US7481319B2 (en) |
EP (1) | EP1510239B1 (en) |
AT (1) | ATE414562T1 (en) |
DE (2) | DE10340123A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006003551B4 (en) * | 2005-03-01 | 2008-09-11 | Mann+Hummel Gmbh | Filter device for liquid filtration |
DE202007010956U1 (en) * | 2007-08-07 | 2008-12-18 | Mann+Hummel Gmbh | Combination filter assembly |
DE202009003704U1 (en) * | 2009-03-18 | 2010-08-12 | Mann+Hummel Gmbh | Filter element and support body for such a filter element |
WO2010139706A1 (en) | 2009-06-04 | 2010-12-09 | Mann+Hummel Gmbh | Filter device for filtering liquids |
DE102009061063A1 (en) | 2009-06-04 | 2011-06-30 | Mann + Hummel GmbH, 71638 | Filter device for filtering liquids, has compensating element made of elastically deformable material for accommodating liquid volume that increases when liquid freezes, where compensating element is arranged in interior of filter element |
DE102012003156A1 (en) * | 2012-02-16 | 2013-08-22 | Emitec France S.A.S | Filter cartridge for conveying device for conveying e.g. Adblue solution into off-gas treatment device used in internal combustion engine of motor vehicle, has retaining wall that is provided with rigid and flexible wall portions |
DE102012003121A1 (en) * | 2012-02-16 | 2013-08-22 | Emitec France S.A.S | Filter cartridge for a reducing agent conveying device |
DE102012010981A1 (en) * | 2012-06-02 | 2013-12-05 | Hydac Filtertechnik Gmbh | System for exhaust aftertreatment in internal combustion engines |
DE102015214167A1 (en) | 2015-07-27 | 2017-02-02 | Robert Bosch Gmbh | Compensation element for a liquid filter |
DE102016005659A1 (en) * | 2016-05-11 | 2017-11-16 | Mann + Hummel Gmbh | Filter element for liquid filtration |
CN110152387A (en) * | 2019-04-10 | 2019-08-23 | 厦门建霖健康家居股份有限公司 | A kind of pressure-vessel of crack resistence and preparation method thereof |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8114299B2 (en) * | 2008-02-28 | 2012-02-14 | Cummins Filtration Ip, Inc. | Filter with flow surge protection and method of protecting filter from flow surge |
US9845259B2 (en) * | 2009-01-03 | 2017-12-19 | General Ecology, Inc. | Apparatus for filtering and/or conditioning and/or purifying a fluid such as water |
DE102009011568B4 (en) * | 2009-03-06 | 2010-12-23 | Mann + Hummel Gmbh | Filter device for a motor vehicle |
DE102009048412B3 (en) * | 2009-10-06 | 2011-02-10 | Mann+Hummel Gmbh | Filter system for filtration of e.g. diesel in motor vehicle, has safety device, and elastic safety-spring element located in bowl when edge-track section is arranged at head or located at head when edge section is arranged in bowl |
CN102596355A (en) | 2009-11-12 | 2012-07-18 | 唐纳森公司 | Liquid filter construction for freezing environments |
DE102010027069B3 (en) * | 2010-07-13 | 2012-02-23 | Mann + Hummel Gmbh | Urea-water solution filter system |
DE102011115998B4 (en) * | 2011-10-14 | 2018-06-21 | Hydac Filtertechnik Gmbh | filter means |
US20140158607A1 (en) * | 2012-12-11 | 2014-06-12 | Mahle International Gmbh | Filter with absorbing expansion volume |
DE102014013852A1 (en) | 2014-09-24 | 2016-03-24 | Mann + Hummel Gmbh | Filter element, filter and filter system with return bypass |
EP3042707B1 (en) | 2015-01-06 | 2020-03-18 | A.L. Filter Co., Ltd. | Freezing resistant liquid filter |
DE102015214080B4 (en) | 2015-07-24 | 2022-03-17 | Röchling Automotive SE & Co. KG | SCR tank for a vehicle with antifreeze |
US10100697B2 (en) * | 2016-04-11 | 2018-10-16 | Tenneco Automotive Operating Company Inc. | Fluid delivery system for exhaust aftertreatment system |
US10914228B2 (en) | 2016-11-15 | 2021-02-09 | Cummins Inc. | Waste heat recovery with active coolant pressure control system |
DE102017222786A1 (en) | 2017-12-14 | 2019-06-19 | Mahle International Gmbh | Liquid filter device |
EP3517751B1 (en) | 2018-01-24 | 2023-11-01 | Donaldson Company, Inc. | Filter device comprising a volume compensating assembly |
CA3108180A1 (en) | 2018-07-30 | 2020-02-06 | Shaw Development, Llc | Aqueous fluid filter assembly with aeration mitigation |
DE112020003197T5 (en) | 2019-07-01 | 2022-03-24 | Cummins Filtration Ip, Inc. | Expansion membrane assembly and filter head in exhaust fluid filter assembly |
CN112237770B (en) * | 2019-07-16 | 2024-01-05 | 上海索菲玛汽车滤清器有限公司 | Filter cartridge with compensation device |
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-
2003
- 2003-08-30 DE DE10340123A patent/DE10340123A1/en not_active Withdrawn
-
2004
- 2004-08-20 EP EP04104020A patent/EP1510239B1/en active Active
- 2004-08-20 AT AT04104020T patent/ATE414562T1/en not_active IP Right Cessation
- 2004-08-20 DE DE502004008473T patent/DE502004008473D1/en active Active
- 2004-08-27 US US10/927,523 patent/US7481319B2/en active Active
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DE69509139T2 (en) * | 1994-01-17 | 1999-12-09 | Fleetguard International Corp | Filters and filter cartridges with free central core for the filtration of motor fluids |
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DE19746752A1 (en) * | 1997-10-23 | 1999-04-29 | Knecht Filterwerke Gmbh | Annular filter insert for IC engine oil or fuel filter |
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Also Published As
Publication number | Publication date |
---|---|
US7481319B2 (en) | 2009-01-27 |
EP1510239B1 (en) | 2008-11-19 |
EP1510239A1 (en) | 2005-03-02 |
US20050077230A1 (en) | 2005-04-14 |
ATE414562T1 (en) | 2008-12-15 |
DE502004008473D1 (en) | 2009-01-02 |
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